Technological method for lifting bridge type grab ship unloader to shore through single hook of corridor-crossing floating crane

Abstract

The invention provides a process method for lifting a bridge type grab ship unloader ashore through a single hook of a corridor-crossing floating crane, which comprises the following steps of: S1, designing a lifting point and a lifting sling for lifting the whole ship unloader, reinforcing the lifting of the ship unloader, and selecting the floating crane; s2, loading of a transport ship: the tail of the transport ship leans against a shipping port wharf, and a ship unloader carries out roll-roll loading on the ship through a roll-roll loading rail; s3, a floating crane and a transport ship are in place; s4, a sling is tied and hung; s5, tying and hanging the hoisting rope; s6, trial hoisting; s7, formal hoisting: continuously hoisting the ship unloader after confirming that the ship unloader is correct, and in the hoisting process, adjusting a hoisting rope in real time, controlling the direction of the ship unloader, hoisting the ship unloader by a floating crane and rotating a suspension arm of the floating crane to enable the ship unloader to span a corridor and stably move to the position above a specified position; s8, the ship unloader is accurately aligned to the mounting position and falls on the rail; and S9, fixing the ship unloader after falling off the rail. According to the invention, the ship unloader can be hoisted ashore by a single hook across the corridor, and meanwhile, the installation period meets the actual demand, so that the ship unloader can be quickly put into production and operation after ashore.

Description

Technical Field

[0001] The invention relates to the technical field of ship unloaders, and in particular to a process for bringing a bridge-type grab ship unloader ashore by using a single hook of a cross-corridor floating crane. Background Art

[0002] A ship unloader is a large mechanical equipment used to unload cargo from a ship at a port terminal or other loading and unloading sites. It grabs the cargo for unloading and has the characteristics of strong adaptability and flexible operation, and can handle various bulk cargoes. Ship unloaders usually have efficient loading and unloading capabilities, which can greatly improve the efficiency of cargo loading and unloading, reduce the time ships stay in the port, and reduce transportation costs. Its working process is generally completed by the lifting, opening and closing, rotation, amplitude change and other mechanisms, and is equipped with advanced control systems to ensure the accuracy and safety of operation. In modern port logistics, ship unloaders play a vital role and are one of the important equipment for port loading and unloading operations.

[0003] At present, the demand for ship unloaders at major terminals is increasingly urgent, but the construction time of the project is affected by the complexity of the roll-on / roll-off process and the need to dismantle the on-site corridor and then restore it. In addition, due to the restrictions of the double-hook or four-hook floating crane anchoring method and the operation at the end of the terminal, it is urgent to develop a process for floating cranes across corridors to lift ship unloaders ashore with a single hook, that is, during the landing of the whole machine, the installation of the ship unloader ashore can be completed without dismantling the corridor and floating crane anchoring, without the need for terminal modification, and shortening the construction period. Summary of the invention

[0004] According to the technical problems raised above, a process for bringing a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane is provided.

[0005] The technical means adopted by the present invention are as follows:

[0006] A process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane comprises the following steps:

[0007] S1. Preparation: Design the lifting points and rigging for the whole ship unloader, reinforce the ship unloader, and select a floating crane;

[0008] S2. Loading of transport ship: The stern of the transport ship is close to the loading port terminal, and the ship unloader is rolled onto the ship through the roll-on / roll-off track. The boom is arranged parallel to the length of the ship, and the position of the ship unloader on the ship is adjusted by the towing tooling;

[0009] S3, floating crane and transport ship are in place;

[0010] S4. Hang the sling: first install the sling on the hook of the floating crane, and then connect the sling with the lifting point of the ship unloader;

[0011] S5. Hanging the hoisting rope: To control the hoisting of the floating crane with a single hook and adjust the rotation angle of the equipment, hang the hoisting rope on all four trolley operating mechanisms of the ship unloader;

[0012] S6. Trial lifting: Remove the sea-fixed lashing tooling, slowly lift the ship unloader, observe the height difference between the sea and land sides, adjust the slings when the deviation is large, stop when the ship unloader is lifted to a certain height from the deck, check the slings and floating crane status to ensure everything is normal;

[0013] S7, Formal lifting: After confirmation, continue to lift the ship unloader. During the lifting process, adjust the lifting rope in real time, control the direction of the ship unloader, lift the ship unloader by floating crane, rotate the floating crane arm to make the ship unloader cross the corridor, and move smoothly to the top of the designated position;

[0014] S8. Precise positioning: The wheels of the ship unloader trolley are close to the dock rails, and the hoisting rope is controlled to maintain stability. At the same time, the trolley is pushed by manpower for fine adjustment to accurately align the ship unloader with the upper and lower rails at the installation location;

[0015] S9. Fix the ship unloader: After the ship unloader falls onto the track, install the anchor beam and trailer it to the anchor point to seal it.

[0016] Furthermore, in step S1, the lifting point on the ship unloader adopts a double-ear plate through-shaft form, including two ear plates arranged at intervals corresponding to the beam reinforcement, holes are drilled on the outer sides of the ear plates for twisting wires, the lifting shaft is inserted between the ear plates, and the shaft end baffle is installed to fix the lifting shaft.

[0017] Furthermore, in step S1, a total of 4 lifting points are set for the ship unloader, each lifting point is connected to a set of lifting slings, and the tops of the four sets of lifting slings are connected to the floating crane single hook; at the same time, in order to avoid interference with the ship unloader tower support rod, the platform railings that interfere are removed in advance.

[0018] Furthermore, each set of the slings includes a high-strength annular sling, a flat shackle and a high-performance seamless rope loop sling, the lower end of the high-strength annular sling is connected to the lifting shaft of the corresponding lifting point, and the upper end is connected to the high-performance seamless rope loop sling through the flat shackle, and the high-performance seamless rope loop sling is connected to the floating lifting single hook.

[0019] Furthermore, in the step S1, the hoisting and reinforcement of the ship unloader includes hoisting and reinforcement of the main beam on the sea side and hoisting and reinforcement of the main beam on the land side, and the hoisting and reinforcement cross beam is set by establishing a structural finite element calculation.

[0020] Furthermore, the sea side lifting reinforcement of the main beam includes multiple reinforcing ribs 1, multiple cross beams 1 and multiple cross beams 2. The reinforcing ribs 1 are welded on both sides of the sea side lifting ear plate of the ship unloader, and the cross beam 1 is welded to the upper cover plate of the main beam below the corresponding sea side shoulder beam; the cross beam 2 is welded to the lower cover plate and web plate of the main beam below the corresponding sea side shoulder beam, and multiple cross beams 1 are arranged in parallel and spaced apart, and multiple cross beams 2 are arranged in parallel and spaced apart and are located on one side of the multiple cross beams 1.

[0021] Furthermore, the land side lifting reinforcement of the main beam includes multiple cross beams three, multiple cross beams four, multiple inclined beams, multiple stiffeners two, multiple stiffeners three and multiple stiffeners four. The cross beam three is welded to the corresponding land side shoulder beam sea, the upper and lower cover plates and the web plate of the main beam near the land side. The cross beam four is welded to the main beam upper cover plate of the corresponding land side shoulder beam. The inclined beam is welded to connect the land side shoulder beam and the main beam and its room support beam. The stiffener two is welded on both sides of the land side lifting ear plate of the ship unloader. The stiffener three is welded at the transition position between the land side shoulder beam and the main beam cover plate. The stiffener four is welded on both sides of the land side lifting ear plate of the ship unloader. Multiple cross beams three are arranged in parallel and spaced apart. Multiple cross beams four are arranged in parallel and spaced apart and are located above multiple cross beams three. Multiple inclined beams on the same side are arranged in parallel and spaced apart.

[0022] Furthermore, in step S1, the floating crane is a full-rotation floating crane.

[0023] Furthermore, in step S3, the floating crane and the transport ship are both close to the dock with cables, and it is ensured that the floating crane arm covers the lifting area of ​​the ship unloader.

[0024] Furthermore, in step S5, there are 4 ropes in total, 2 ropes on the land side are tied to the dock mooring posts for fixation, 1 rope on the sea side near the bow is controlled by a winch, and 1 rope on the sea side near the stern is tied to the ship's mooring pile for fixation.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. Enhance the integrity of the equipment: Overall hoisting can maintain the integrity and stability of the ship unloader structure, reduce structural deformation and connection problems that may occur due to segmented installation, and improve the operating reliability and stability of the equipment.

[0027] 2. Improve installation quality: Carrying out overall manufacturing and debugging in a factory or a dedicated site can better control manufacturing accuracy and quality and reduce errors and defects in on-site installation.

[0028] 3. Shorten the construction period: Compared with the whole machine roll-on and roll-off, the overall hoisting avoids the complicated processes such as corridor dismantling and restoration and roll-on and roll-off tooling arrangement on site, which greatly reduces the project operation time and helps to speed up the progress of the project.

[0029] 4. Reduce construction risks: Compared with the floating crane station located on the sea side of the wharf and laying anchors and lifting the ship unloader sideways, it avoids the difficult steps of setting anchor points, reduces the impact range of the operating waters, increases the safe distance between the floating crane boom and the ship unloader structure, and reduces the safety risks during construction.

[0030] 5. Reduce on-site interference: Compared with the floating crane station that is located at the end of the wharf to lay anchors and lift the ship unloader sideways, it avoids the difficult steps of setting anchor points and reduces the impact range of the operating waters. At the request of users, the placement of the ship unloader at the wharf is not limited to the end of the wharf, and the selection is more flexible, which reduces the interference of on-site construction on the normal operation of the port and helps to maintain the continuity and efficiency of port operations.

[0031] Based on the above reasons, the present invention can be widely promoted in the fields of ship unloaders and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 The figure is a flow chart of the process of the present invention.

[0034] Figure 2 The present invention is a schematic diagram of the sling design, wherein (a) is a front view, (b) is a schematic diagram of (a) in the direction A, and (c) is a schematic diagram of (a) in the direction B.

[0035] Figure 3 It is a schematic diagram of the sea side hoisting reinforcement of the main beam of the present invention.

[0036] Figure 4 It is a schematic diagram of the land side hoisting reinforcement of the main beam of the present invention.

[0037] Figure 5 It is a schematic diagram of the traction arrangement of the roll-on / roll-off ship according to the present invention.

[0038] Figure 6 It is a schematic diagram of loading of a transport ship of the present invention, wherein (a) is a front view, (b) is a side view, and (c) is a top view.

[0039] Figure 7 The schematic diagram of the ship unloader being hoisted onto the shore of the present invention, wherein (a) is a front view, (b) is a top view, and (c) is a top view of the ship unloader being able to cross the corridor by rotating the boom.

[0040] In the figure: 100, high-performance jointless rope loop rigging; 200, flat shackle; 300, high-strength ring sling; 1-1, reinforcement rib one; 1-2, cross beam one; 1-3, cross beam two; 1, cross beam three; 2, cross beam four; 3, inclined beam; 4, reinforcement rib two; 5, reinforcement rib three; 6, reinforcement rib four. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0045] The present invention provides a process method for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane, which has a simple process and is easy to use. It is applied to ship unloading equipment at port terminals, and particularly relates to a bridge-type grab ship unloader. A floating crane station is used to be located in the waters on the sea side of the terminal, and a single hook of a cross-corridor is used to lift the ship unloader ashore. The process method for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane replaces traditional process methods such as dismantling the old terminal corridor for roll-on / roll-off, floating crane laying anchors for lateral lifting, and lifting the ship unloader ashore at the end of the terminal, while ensuring that the installation period meets actual needs, so that the bridge-type grab ship unloader can be quickly put into production and operation after landing.

[0046] like Figure 1 As shown, the process method of the cross-corridor floating crane loading and unloading machine onto the shore of the present invention is as follows:

[0047] 1. Design of lifting points and rigging for the whole ship unloader: The lifting point is designed as a double-ear plate through-shaft form, and the rigging and shaft are connected by high-strength slings to avoid interference with the tower support rods of the ship unloader. The platform railings that interfere should be removed in advance. Figure 2. The double-ear plate through-axis structure includes two ear plates arranged at corresponding intervals of the beam reinforcement, holes are drilled on the outer side of the ear plates for twisting wires, the lifting shaft is inserted between the ear plates, and the shaft end baffle is installed to fix the lifting shaft. A total of 4 lifting points are set for the ship unloader lifting, and each lifting point is connected to a set of lifting slings, and the tops of the four sets of lifting slings are connected to the floating single hook. Each set of lifting slings includes a high-strength annular sling 300, a flat shackle 200 and a high-performance jointless rope loop sling 100. The lower end of the high-strength annular sling 300 is connected to the lifting shaft of the corresponding lifting point, and the upper end is connected to the high-performance jointless rope loop sling 100 through the flat shackle 200, and the high-performance jointless rope loop sling 100 is connected to the floating single hook. The sea side lifting reinforcement of the main beam includes multiple reinforcing ribs 1-1, multiple cross beams 1-2 and multiple cross beams 1-3. The reinforcing ribs 1-1 are welded on both sides of the sea side lifting ear plates of the ship unloader. The cross beams 1-2 are welded to the upper cover plate of the main beam under the corresponding sea side shoulder beam; the cross beams 1-3 are welded to the lower cover plate and the web plate of the main beam under the corresponding sea side shoulder beam. The multiple cross beams 1-2 are arranged in parallel and at intervals, and the multiple cross beams 1-3 are arranged in parallel and at intervals and are located on one side of the multiple cross beams 1-2. In this embodiment, three cross beams 1-2 are arranged and two cross beams 1-3 are arranged. The land side lifting reinforcement of the main beam includes multiple cross beams 31, multiple cross beams 42, multiple inclined beams 3, multiple reinforcing ribs 24, multiple reinforcing ribs 35 and multiple reinforcing ribs 46. The cross beam 31 is welded to the upper and lower covers and webs of the corresponding land side shoulder beam sea and the land side nearby main beam. The cross beam 42 is welded to the upper cover of the main beam corresponding to the land side shoulder beam. The inclined beam 3 is welded to connect the land side shoulder beam and the main beam and its room support beam. The reinforcing ribs 24 are welded to both sides of the land side lifting ear plate of the ship unloader. The reinforcing ribs 35 are welded to the transition position between the land side shoulder beam and the main beam cover plate. The reinforcing ribs 46 are welded to both sides of the land side lifting ear plate of the ship unloader. Multiple cross beams 31 are arranged in parallel and spaced apart. Multiple cross beams 42 are arranged in parallel and spaced apart and are located above multiple cross beams 31. Multiple inclined beams 3 on the same side are arranged in parallel and spaced apart. In this embodiment, four cross beams 31 are provided, of which three cross beams 31 are arranged up and down on the same side, and another cross beam 31 is provided on the other side. Two cross beams 42 are arranged in parallel. Two inclined beams 3 are provided on each side, arranged up and down.

[0048] 2. Ship unloader hoisting reinforcement: By establishing structural finite element calculation, add hoisting reinforcement beams, see Figure 3 , Figure 4 The ship unloader hoisting and reinforcement includes the main beam sea side hoisting and reinforcement and the main beam land side hoisting and reinforcement.

[0049] 3. Floating crane selection: Fully rotating floating crane, select a floating crane of appropriate tonnage according to the weight of the whole machine, and the single main hook meets the lifting capacity.

[0050] 4. Loading of transport ship: The stern of the transport ship is close to the loading port terminal, and the ship unloader is loaded on board via the roll-on / roll-off track. The boom is arranged parallel to the length of the ship, and the position of the ship unloader on board is adjusted by the traction tooling. Figure 5 , Figure 6 .

[0051] 5. Floating crane and transport ship are in position: The floating crane and transport ship are both tied to the dock with cables to ensure that the floating crane boom can cover the lifting area of ​​the ship unloader.

[0052] 6. Hang the sling: first install the sling on the hook of the floating crane, and then connect the sling to the lifting point of the ship unloader.

[0053] 7. Hanging the lifting rope: In order to control the lifting of the floating crane with a single hook and adjust the rotation angle of the equipment, the four trolley operating mechanisms of the ship unloader are all hung with lifting ropes. The two ropes on the land side are tied to the mooring posts of the dock and fixed respectively, and the rope on the sea side near the bow is controlled by a winch, and the rope on the sea side near the stern is tied to the mooring pile on the ship and fixed.

[0054] 8. Trial lifting: remove the sea-fixed lashing tooling, slowly lift the ship unloader, observe the height difference between the sea and land sides, if the deviation is large, adjust the lifting rigging, when the ship unloader is lifted to a certain height from the deck, stop, check the status of the lifting rigging, floating crane, etc., to ensure everything is normal.

[0055] 9. Formal lifting: After confirmation, continue to lift the ship unloader. During the lifting process, adjust the lifting rope in real time, control the direction of the ship unloader, lift the ship unloader by floating, rotate the boom to make it cross the corridor, and move it smoothly to the top of the designated position. Figure 7 .

[0056] 10. Precise positioning: The wheels of the ship unloader trolley are close to the dock track, and the hoisting rope is controlled to maintain stability. At the same time, the trolley is pushed manually for fine-tuning to accurately align the ship unloader with the upper and lower rails at the installation position.

[0057] 11. Fix the ship unloader: After the ship unloader falls on the track, install the anchor beam and trailer it to the anchor point to seal it.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A process for lifting a bridge-type grab ship unloader ashore with a single hook of a floating crane across a corridor, characterized in that: The steps include: S1. Preparation: Design the lifting points and rigging for the whole ship unloader, reinforce the ship unloader, and select a floating crane; S2. Loading of transport ship: The stern of the transport ship is close to the loading port terminal, and the ship unloader is rolled onto the ship through the roll-on / roll-off track. The boom is arranged parallel to the length of the ship, and the position of the ship unloader on the ship is adjusted by the towing tooling; S3, floating crane and transport ship are in place; S4. Hang the sling: first install the sling on the hook of the floating crane, and then connect the sling with the lifting point of the ship unloader; S5. Hanging the hoisting rope: To control the hoisting of the floating crane with a single hook and adjust the rotation angle of the equipment, hang the hoisting rope on all four trolley operating mechanisms of the ship unloader; S6. Trial lifting: Remove the sea-fixed lashing tooling, slowly lift the ship unloader, observe the height difference between the sea and land sides, adjust the slings when the deviation is large, stop when the ship unloader is lifted to a certain height from the deck, check the slings and floating crane status to ensure everything is normal; S7, Formal lifting: After confirmation, continue to lift the ship unloader. During the lifting process, adjust the lifting rope in real time, control the direction of the ship unloader, lift the ship unloader by floating crane, rotate the floating crane arm to make the ship unloader cross the corridor, and move smoothly to the top of the designated position; S8. Precise positioning: The wheels of the ship unloader trolley are close to the dock rails, and the hoisting rope is controlled to maintain stability. At the same time, the trolley is pushed by manpower for fine adjustment to accurately align the ship unloader with the upper and lower rails at the installation location; S9. Fix the ship unloader: After the ship unloader falls onto the track, install the anchor beam and trailer it to the anchor point to seal it.

2. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 1 is characterized in that: In step S1, the lifting point on the ship unloader adopts a double-ear plate through-shaft form, including two ear plates arranged at intervals corresponding to the beam reinforcement, holes are drilled on the outer sides of the ear plates for twisting wires, the lifting shaft is inserted between the ear plates, and the shaft end baffle is installed to fix the lifting shaft.

3. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 2 is characterized in that: In step S1, a total of 4 lifting points are set for the ship unloader, each lifting point is connected to a set of lifting slings, and the tops of the four sets of lifting slings are connected to the floating crane single hook; at the same time, in order to avoid interference with the tower support rods of the ship unloader, the platform railings that interfere are removed in advance.

4. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 3 is characterized in that: Each set of the slings comprises a high-strength annular sling (300), a flat shackle (200) and a high-performance seamless rope loop sling (100); the lower end of the high-strength annular sling (300) is connected to the hoisting shaft of the corresponding lifting point, and the upper end is connected to the high-performance seamless rope loop sling (100) through the flat shackle (200); and the high-performance seamless rope loop sling (100) is connected to a floating single hook.

5. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 1 is characterized in that: In the step S1, the hoisting and reinforcement of the ship unloader includes the hoisting and reinforcement of the main beam on the sea side and the hoisting and reinforcement of the main beam on the land side, and the hoisting and reinforcement cross beam is set by establishing a structural finite element calculation.

6. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 5 is characterized in that: The main beam sea side lifting reinforcement comprises a plurality of reinforcing ribs one (1-1), a plurality of cross beams one (1-2) and a plurality of cross beams two (1-3), wherein the reinforcing ribs one (1-1) are welded on both sides of the sea side lifting ear plate of the ship unloader, the cross beam one (1-2) is welded to the main beam upper cover plate below the corresponding sea side shoulder beam; the cross beam two (1-3) is welded to the main beam lower cover plate and web plate below the corresponding sea side shoulder beam, the plurality of cross beams one (1-2) are arranged in parallel and spaced apart, and the plurality of cross beams two (1-3) are arranged in parallel and spaced apart and are located on one side of the plurality of cross beams one (1-2).

7. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 5 is characterized in that: The land side lifting reinforcement of the main beam comprises a plurality of cross beams three (1), a plurality of cross beams four (2), a plurality of inclined beams (3), a plurality of stiffening ribs two (4), a plurality of stiffening ribs three (5) and a plurality of stiffening ribs four (6). The cross beam three (1) is welded to the corresponding land side shoulder beam sea, the upper and lower cover plates and the web plate of the land side nearby main beam, the cross beam four (2) is welded to the main beam upper cover plate of the corresponding land side shoulder beam, the inclined beam (3) is welded to connect the land side shoulder beam and the main beam and its room support beam, the stiffening rib two (4) is welded to both sides of the land side lifting ear plate of the ship unloader, the stiffening rib three (5) is welded to the transition position between the land side shoulder beam and the main beam cover plate, the stiffening rib four (6) is welded to both sides of the land side lifting ear plate of the ship unloader, the plurality of cross beams three (1) are arranged in parallel and spaced apart, the plurality of cross beams four (2) are arranged in parallel and spaced apart and are located above the plurality of cross beams three (1), and the plurality of inclined beams (3) on the same side are arranged in parallel and spaced apart.

8. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 1 is characterized in that: In step S1, the floating crane is a full-rotation floating crane.

9. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 1 is characterized in that: In step S3, the floating crane and the transport ship are both close to the dock with cables, and it is ensured that the floating crane arm covers the lifting area of ​​the ship unloader.

10. The process for lifting a bridge-type grab ship unloader ashore by a single hook of a cross-corridor floating crane according to claim 1, characterized in that: In step S5, there are 4 ropes in total, 2 ropes on the land side are tied to the dock bollards for fixation, 1 rope on the sea side near the bow is controlled by a winch, and 1 rope on the sea side near the stern is tied to the ship's mooring pile for fixation.

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